Generates a Scatter chart.
sc = GoogleChart::ScatterChart.new('320x200',"Scatter Chart") sc.data "Scatter Set", [[1,1,], [2,2], [3,3], [4,4]] sc.point_sizes [10,15,30,55] puts sc.to_url
Initializes the Scatter Chart with a chart_size
(in
WIDTHxHEIGHT format) and a chart_title
# File lib/google_chart/scatter_chart.rb, line 14 def initialize(chart_size='300x200', chart_title=nil) # :yield: self super(chart_size, chart_title) self.chart_type = :s self.show_legend = false @point_sizes = [] yield self if block_given? end
Specify the data point sizes of the Scatter chart (optional). The data point sizes are scaled with this data set.
# File lib/google_chart/scatter_chart.rb, line 33 def point_sizes(values) @point_sizes = values end
# File lib/google_chart/scatter_chart.rb, line 22 def process_data # Interleave X and Y co-ordinate data encoded_data = join_encoded_data([encode_data(x_data[0],max_x_value), encode_data(y_data[0],max_y_value)]) # Add point sizes data if it exists unless @point_sizes.empty? encoded_data = join_encoded_data([encoded_data, encode_data(@point_sizes)]) end return encoded_data end